[Dvs510]

Been looking at the 60606 but just sketchy about it being too loud around here.. anyone done the 60607 and kept stock npp and secondary’s? Is it at all any louder?

[MAGAUSA]

Not your question, but I had the one that deleted the secondaries with NPP. The sound difference was not that much. I wouldn’t give up on that yet. It does change the sound but it isn’t drastic. It’s a nice complement.

[24v]

Originally Posted by Dvs510

Been looking at the 60606 but just sketchy about it being too loud around here.. anyone done the 60607 and kept stock npp and secondary’s? Is it at all any louder?

I don't understand why you want an exhaust that deletes the afm valves that your car does not have? Am I missing something?

[trohde78]

Originally Posted by Dvs510

Been looking at the 60606 but just sketchy about it being too loud around here.. anyone done the 60607 and kept stock npp and secondary’s? Is it at all any louder?

The 60607 is for use with headers, while the 60606 is for bolting up to the stock primary cats. Other than that, I believe that both mid pipes are the same.

[18ss376]

The 60606 has been discontinued from Borla.

[Dvs510]

Originally Posted by trohde78

The 60607 is for use with headers, while the 60606 is for bolting up to the stock primary cats. Other than that, I believe that both mid pipes are the same.

The 60607 can b used just like the 60606 but keep the secondaries.. I was just curious if there was a significant difference in air flow from stock x and mid pipe to borla set up ( keeping secondary’s and npp)

[24v]

Originally Posted by trohde78

The 60607 is for use with headers, while the 60606 is for bolting up to the stock primary cats. Other than that, I believe that both mid pipes are the same.

The 60607 is for stock cats and secondaries on an auto car. Nothing to do with headers.
https://www.borla.com/products/camar...rt__60607.html

[24v]

Originally Posted by Dvs510

The 60607 can b used just like the 60606 but keep the secondaries.. I was just curious if there was a significant difference in air flow from stock x and mid pipe to borla set up ( keeping secondary’s and npp)

There is no way changing only the tubing will have any effect on sound or power.

[trohde78]

Originally Posted by 24v

The 60607 is for stock cats and secondaries on an auto car. Nothing to do with headers.
https://www.borla.com/products/camar...rt__60607.html

Does their website state that somewhere? Both say: "2016-2018 Camaro SS 6.2L V8, Automatic/ Manual Trans Rear Wheel Drive 2 door, except convertibles."

The picture that they have shown for the 60607 has two equal length connector pipes with clamps, which should be for headers. Either of these mid pipes eliminates the secondary cats, so there should be some change in sound.

[24v]

Originally Posted by trohde78

Does their website state that somewhere? Both say: "2016-2018 Camaro SS 6.2L V8, Automatic/ Manual Trans Rear Wheel Drive 2 door, except convertibles."

The picture that they have shown for the 60607 has two equal length connector pipes with clamps, which should be for headers. Either of these mid pipes eliminates the secondary cats, so there should be some change in sound.

If you look at the 60606 page you can see that it eliminates the secondary cats and leaves the primaries. It is also longer to the front than the 60607. Also on the 60606 page it has a warning whereas they do not on the 60607 page.

"This X-pipe assembly bolts on behind the primary cats and eliminates the secondary cats. It does not include AFM valves. It does not fit convertible models."
https://www.borla.com/products/camar...rt__60606.html


You are totally correct about the auto and manual thing, my bad. I just assumed you would buy this for an auto car to delete the afm valves as it made no sense why a manual car would want it.

[MAGAUSA]

It looks to me as if they've made the secondary cat area as another product section to sell rather than including with the the "system" I bought. So now they have the 60663 as a "front pipe" to sell you with their other pieces - meaning likely a little more money.



My read of the OP was that there was concern over being too loud with getting rid of the so=called secondary cats. I went from the former Borla midpipe with the secondary "cats" deleted to later adding the flowmaster american thunder and have been been happy with all stages. At this point, this combo is amazing and what I wanted.



I don't like the rust showing where they welded the tips to one of the mufflers - both on the inside and outside of the housing, but their warranty sucks and they don't seem to care but that's okay even if the rust was there upon delivery. I'll buff and coat. FU too right back at you Phastek with your reference to corrosion upon delivery being not covered under warranty. Other than than the colossal FU from a supposed great sponsor, I really do like the sound of this exhaust, including the unique interplay between the two mufflers. I only have the corrosion on one of the four so far so maybe it's manu defect, but I'll never know. I would recommend the flowmaster american thunder and borla midpipe (with the "cats" deleted) based on sound and drive-ability, just don't expect any support.

[Dvs510]

Originally Posted by MAGAUSA

It looks to me as if they've made the secondary cat area as another product section to sell rather than including with the the "system" I bought. So now they have the 60663 as a "front pipe" to sell you with their other pieces - meaning likely a little more money.



My read of the OP was that there was concern over being too loud with getting rid of the so=called secondary cats. I went from the former Borla midpipe with the secondary "cats" deleted to later adding the flowmaster american thunder and have been been happy with all stages. At this point, this combo is amazing and what I wanted.



I don't like the rust showing where they welded the tips to one of the mufflers - both on the inside and outside of the housing, but their warranty sucks and they don't seem to care but that's okay even if the rust was there upon delivery. I'll buff and coat. FU too right back at you Phastek with your reference to corrosion upon delivery being not covered under warranty. Other than than the colossal FU from a supposed great sponsor, I really do like the sound of this exhaust, including the unique interplay between the two mufflers. I only have the corrosion on one of the four so far so maybe it's manu defect, but I'll never know. I would recommend the flowmaster american thunder and borla midpipe (with the "cats" deleted) based on sound and drive-ability, just don't expect any support.

So u don’t think the 60606 full secondary delete with mid will b too loud for California’s bs 95 dB law? I don’t drive like an a**hole so I figured that would help. Just want it to sound a lil better under normal circumstances

[24v]

Originally Posted by Dvs510

So u don’t think the 60606 full secondary delete with mid will b too loud for California’s bs 95 dB law? I don’t drive like an a**hole so I figured that would help. Just want it to sound a lil better under normal circumstances

It will more than likely exceed the limit, but only you, and the cops in your area, can decide if that matters. Just do it and save the stock stuff. If you get busted, pay your fine, put the stock stuff back on and move on.


Silly suggestion time... Have you tried cruising with the back seat down? That adds a bit of volume in the car and might be just enough for you. Plus it's free to try.

[Gasoline_Farts]

Originally Posted by 24v

There is no way changing only the tubing will have any effect on sound or power.

It absolutely could. Look at flowmaster scavenger x mid pipes. They bolt to secondary cats and attach to muffler (would need to weld to npp).

Sound waves travel by bouncing off the walls of the tube, any change in diameter will alter the frequency and affect how you perceive the sound. I.e it would sound different.

Not to mention that both borla and FM eliminate those massive kinks at the rear axle and that must have an affect on sound and maybe even power too.